Japan Geoscience Union Meeting 2019

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[E] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM13] Inner magnetosphere: Recent understanding and new insights

Wed. May 29, 2019 1:45 PM - 3:15 PM A04 (TOKYO BAY MAKUHARI HALL)

convener:Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University), Danny Summers(Memorial University of Newfoundland), Yoshizumi Miyoshi(Institute for Space-Earth Environmental Research, Nagoya University), Shinji Saito(Graduate School of Science, Nagoya University), Chairperson:Yoshizumi Miyoshi(ISEE, Nagoya University), Yusuke Ebihara(RISH, Kyoto University)

The inner magnetosphere is characterized by the dominance of intrinsic dipolar Earth's magnetic field. The dipolar magnetic field traps charged particles, resulting in the formation of unique particle environment known as the plasmasphere, the ring current, and the radiation belt. The inner magnetosphere is always changing because of incoming energy from the outer magnetosphere and the ionosphere in the forms of particles and electromagnetic fields. In the inner magnetosphere, the particle energy is transferred to the field energy, and vice versa. The mutual coupling between particles and fields also makes the inner magnetosphere unique. The outgoing energy to these regions is also known to be significant, such as precipitation into the upper atmosphere and sub-auroral disturbances. A number of satellites (e.g., DMSP, NOAA, Geotail, Cluster, THEMIS, Van Allen Probes, MMS, and Arase), ground-based instruments (e.g., SuperDARN and EISCAT radars, magnetometers, and cameras), and numerical simulations (e.g., global particle simulation, PIC simulation, and hybrid simulation) have successfully surveyed the inner magnetosphere, which deepen our knowledge significantly. USAF DSX, UCLA Elfin and NASA CeRES will be launched soon, being expected to provide important information. We solicit papers describing recent results on the inner magnetosphere and/or its coupling with the other regions, including the ionosphere and the outer magnetosphere.

1:45 PM - 2:05 PM

[PEM13-22] Statistical Property of Long Lasting Poloidal Pc 4-5 Waves and Relation with Particle Dynamics in the Inner Magnetosphere: Van Allen Probes Observations

★Invited Papers

*Kazuhiro Yamamoto1, Masahito Nose2, Kunihiro Keika3, Charles W. Smith4, Robert J. MacDowall5, Donald G. Mitchell6, Hyomin Kim7, John Wygant8 (1.Graduate School of Science, Kyoto University, 2.Institute for Space-Earth Environmental Research, Nagoya University, 3.Graduate School of Science, the University of Tokyo, 4.Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 5.Solar System Exploration Division, Goddard Space Flight Center, 6.The Johns Hopkins University Applied Physics Laboratory, 7.Center for Solar Terrestrial Research, New Jersey Institute of Technology, 8.School of Physics and Astronomy, University of Minnesota)

2:05 PM - 2:25 PM

[PEM13-23] Subauroral Polarization Streams: Indication of Magnetosphere–Ionosphere Coupling

★Invited Papers

*Fei He1,2,3, Xiao-Xin Zhang4, Wenbin Wang5, Zhonghua Yao1,2,3, Yong Wei1,2,3, Zhi-Peng Ren1,2,3, Xinan Yue1,2,3, Weixing Wan1,2,3 (1.Institute of Geology & Geophysics, CAS, 2.Institutions of Earth Science, CAS, 3.College of Earth and Planetary Sciences, UCAS, 4.National Center for Space Weather, CMA, 5.High Altitude Observatory, NCAR)

2:25 PM - 2:40 PM

[PEM13-24] Simultaneous Arase-ground observations of a purple and green auroral arc

*Kazuo Shiokawa1, Masahito Nose1, Satoshi Tsuchiya1, Yuki Takagi1, Shun Imajo1, Yoshimasa Tanaka2, Yoshizumi Miyoshi1, Keisuke Hosokawa3, Yoichi Kazama4, Shiang-Yu Wang4, Sunny W.Y. Tam4, Kazushi Asamura5, Satoshi Kasahara6, Shoichiro Yokota7, Tomoaki Hori1, Kunihiro Keika6, Ayako Matsuoka5 (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.National Institute of Polar Research, 3.The University of Electro-Communications, 4.National Cheng Kung University, 5.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 6.University of Tokyo, 7.Osaka University)

2:40 PM - 2:55 PM

[PEM13-25] Multiple Satellite Observations of Oxygen Torus in the Inner Magnetosphere

*Masahito Nose1, Ayako Matsuoka2, Atsushi Kumamoto3, Yoshiya Kasahara4, J Goldstein5,6, Mariko Teramoto1, Fuminori Tsuchiya3, Shoya Matsuda2, Masafumi Shoji1, Shun Imajo1, Oimatsu Satoshi7, Kazuhiro Yamamoto7, Yuki Obana8, Reiko Nomura9, Akiko Fujimoto10, Iku Shinohara2, Yoshizumi Miyoshi1, W S Kurth11, C A Kletzing11, C W Smith12, R J MacDowall13 (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3.Graduate School of Science, Tohoku University, 4.Information Media Center, Kanazawa University, 5.Space Science and Engineering Division, Southwest Research Institute, 6.University of Texas at San Antonio, 7.Graduate School of Science, Kyoto University, 8.Faculty of Engineering, Osaka Electro-Communication University, 9.National Astronomical Observatory of Japan, 10.Kyushu Institute of Technology, 11.Department of Physics and Astronomy, University of Iowa, 12.Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 13.Solar System Exploration Division, Goddard Space Flight Center)

Discussion (3:10 PM - 3:15 PM)

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